<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.js"></script>
  <script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.js"></script>
</head>

<body>
  <button id="btn">请求</button>
  <script>
    $('#btn').click(function () {
      axios.get('http://127.0.0.1:3000/login?user=www&pass=123').then((data) => {
        console.log(data);
      }).catch((err) => {
        console.log(err);
      });
    })
  </script>
</body>

</html>